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(11)

EP 3 969 149 A1

(12)

(43) Date of publication: 23.03.2022 Bulletin 2022/12 (21) Application number: 19929425.7 (22) Date of filing: 30.09.2019

(51) International Patent Classification (IPC):  B01D 35/30(2006.01) B01D 35/143(2006.01) B01D 35/157(2006.01) B01D 35/02(2006.01) B01D 35/147(2006.01) C02F 1/00(2006.01) (52) Cooperative Patent Classification (CPC): B01D 61/18; B01D 63/067; B01D 2313/23; B01D 35/153; B01D 35/306; B01D 2201/302; C02F 2201/001; C02F 1/283; C02F 1/444; C02F 2201/006; C02F 2201/004 (86) International application number: PCT/US2019/053853 (87) International publication number: WO 2020/236204 (26.11.2020 Gazette 2020/48)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 17.05.2019 US 201916415539 (71) Applicant: Rockwell Collins, Inc. Cedar Rapids, IA 52498 (US)	(72) Inventors: SCHMITT, Matthew, A. Kenosha, WI 53144 (US) CHESACK, Gregory Kenosha, WI 53144 (US) MEDAETS, Mauricio Milwaukee, WI 53204 (US) (74) Representative: Dehns  St. Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)